SAE MAP4919 Fluid Connections, Fittings, Hex Width, Metric

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Product Code:SAE MAP4919
Title:Fluid Connections, Fittings, Hex Width, Metric
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:This SAE Metric Aerospace Recommended Practice (MAP) is intended as a guide toward standard practice for selection of nominal hex widths for fittings.
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【英文标准名称】:Electrictraction-Rotatingelectricalmachinesforrailandroadvehicles-Part1:Machinesotherthanelectronicconverter-fedalternatingcurrentmotors(IEC60349-1:2010);GermanversionEN60349-1:2010
【原文标准名称】:电力牵引.铁路与道路车辆用旋转电机.第1部分:电子交流器供电的交流电动机除外的旋转电机(IEC60349-1-2010).德文版本EN60349-1-2010
【标准号】:EN60349-1-2010
【标准状态】:现行
【国别】:
【发布日期】:2011-07
【实施或试行日期】:2011-07-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:辅助电动机;分类;定义(术语);效率;电流;电机;电动机;电力牵引;电的;电气工程;电传动系统;电子设备;发电机;机械;标志;测量;测量技术;噪声测量;合格试验;铁路应用设施;铁道车辆;铁路;道路车辆;旋转电机;旋转电力机械;常规检验;温度测量;试验;牵引电动机;交通车辆;车辆
【英文主题词】:Auxiliarymotors;Classification;Definitions;Efficiency;Electriccurrent;Electricmachines;Electricmotors;Electrictraction;Electrical;Electricalengineering;Electricaltransmissionsystems;Electronicequipment;Generators;Machines;Marking;Measurement;Measuringtechniques;Noisemeasurements;Qualificationtests;Railwayapplications;Railwayvehicles;Railways;Roadvehicles;Rotatingelectricmachines;Rotatingelectricalmachinery;Routinechecktests;Temperaturemeasurement;Testing;Tractionmotors;Trafficvehicles;Vehicles
【摘要】:
【中国标准分类号】:S35
【国际标准分类号】:29_160_30;45_060_10
【页数】:72P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforImpactTestingofMiniaturizedCharpyV-NotchSpecimens
【原文标准名称】:微型夏比V型冲击试样缺口的标准试验方法
【标准号】:ASTME2248-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E28.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:fractureappearance;impacttest;instrumentedimpacttest;lateralexpansion;miniaturizedCharpytest;notchedspecimens;pendulummachine
【摘要】:TherearecaseswhereitisimpracticalorimpossibletoprepareconventionalCVNspecimens.MCVNspecimensareanalternativeapproachforcharacterizingnotchedspecimenimpactbehavior.TypicalapplicationsincludeMCVNspecimenspreparedfromthebrokenhalvesofpreviouslytestedspecimens,fromthinproductformmaterial,orfrommaterialcutfromin-servicecomponents.ThisstandardestablishestherequirementsforperformingimpacttestsonMCVNspecimensfabricatedfrommetallicmaterials.Minimumrequirementsaregivenformeasurementandrecordingequipmentsuchthatsimilarsensitivityandcomparablemeasurements,ascomparedtoconventionalCVNtests,areachieved.TheusershouldbeawarethatthetransitionregiontemperaturedependencedataobtainedfromMCVNspecimensarenotdirectlycomparabletothoseobtainedfromfull-sizestandardCharpy-Vspecimensandsuitablecorrelationprocedureshavetobeemployedtoobtainductile-to-brittletransitiontemperature(DBTT)dataequivalenttothoseobtainedusingCVNspecimens.Inallinstances,correlationswillhavetobedevelopedtorelateuppershelfenergy(USE)datafromMCVNtesttoCVNcomparableenergylevels.ApplicationofMCVNtestdatatotheevaluationofferriticmaterialbehavioristheresponsibilityoftheuserofthistestmethod.MCVNtestdatashouldnotbeuseddirectlytodeterminethelowestallowableoperatingtemperatureforanin-servicematerial.Thedatamustbeinterpretedwithintheframeworkofafracturemechanicsassessment.WhilethisTestMethodtreatstheuseofaninstrumentedstrikerasanoption,theuseofinstrumentationintheimpacttestisrecommendedandisfullydescribedinTestMethodE2298.Inordertoestablishtheforce-displacementdiagram,itisnecessarytomeasuretheimpactforceasafunctionoftimeduringcontactofthestrikerwiththespecimen.Theareaundertheforce-displacementcurveisameasureofabsorbedenergy.Asanalternative,absorbedenergymaybeevaluateddirectlyfrommachinedialreading.Wheneverpossible,anopticalencodershallbeusedinplaceofthemachinedialbecauseanencoderhasbetterresolutionthanadial.1.1Thistestmethoddescribesnotched-barimpacttestingofmetallicmaterialsusingMiniaturizedCharpyV-Notch(MCVN)specimensandtestapparatus.Itprovides:(a)adescriptionoftheapparatus,(b)requirementsforinspectionandcalibration,(c)safetyprecautions,(d)sampling,(e)dimensionsandpreparationofspecimens,(f)testingprocedures,and(g)precisionandbias.1.2ThisstandardconcernsMiniaturizedCharpyV-Notchspecimens,forwhichalllineardimensions,includinglengthandnotchdepth,arereducedwithrespecttoatypeAstandardimpacttestspecimeninaccordancewithTestMethodsE23.Thesearenotthesameassub-sizespecimens,describedinAnnexA3ofTestMethodsE23,forwhichlength,notchangleandnotchdeptharethesameasforthestandardtypeACharpyspecimen.Seealso1.5below.1.3ComparisonoftheMCVNdatawithconventionalCharpyV-Notch(CVN)dataorapplicationoftheMCVNdata,orboth,totheevaluationofferriticmaterialbehavioristheresponsibilityoftheuserofthistestmethodandisnotexplicitlycoveredbythistestmethod.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotaddresstestingofsub-sizespecimensasdiscussedinTestMethodsE23.Thereadershouldunderstandthedistinctionbetweenminiatureandsubsiz......
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:6P.;A4
【正文语种】:英语